// 重置样式
html,
body,
p,
h1,
h2,
h3,
h4,
h5,
h6,
ul,
ol,
li,
dl,
dt,
dd,
input,
button {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
li {
  list-style: none;
}
a,
a:hover,
a:active,
a:focus,
a:visited {
  text-decoration: none;
  -webkit-tap-highlight-color: transparent; /* 移除点击高亮 */
  outline: none; /* 移除点击轮廓 */
  background: none; /* 移除链接默认背景 */
}
iframe {
  width: 100% !important;
  height: rem(3.3867);
  margin: 0;
  padding: 0;
  position: fixed;
  left: 0;
  border: none;
  z-index: 99;
}
.iframe_top {
  top: 0;
}

.iframe_bottom {
  bottom: 0 !important;
}
